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The Gut Microbiome of the Eastern Spruce Budworm Does Not Influence Larval Growth or Survival

Melbert T. Schwarz, Daniel Kneeshaw, Steven W. Kembel
doi: https://doi.org/10.1101/330928
Melbert T. Schwarz
aDépartement des sciences biologiques, Université du Québec à Montreal, Montreal, Quebec, Canada
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  • For correspondence: melbert.schwarz@gmail.com
Daniel Kneeshaw
aDépartement des sciences biologiques, Université du Québec à Montreal, Montreal, Quebec, Canada
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Steven W. Kembel
aDépartement des sciences biologiques, Université du Québec à Montreal, Montreal, Quebec, Canada
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ABSTRACT

Microbial communities have been shown to play an important role for host health in mammals, especially humans. It is thought that microbes could play an equally important role in other animal hosts such as insects. A growing body of evidence seems to support this, however most of the research effort in understanding host-microbe interactions in insects has been focused on a few well-studied groups such as bees, cockroaches and termites. We studied the effects of the gut-associated microbial community on the growth and survival of the eastern spruce budworm Choristoneura fumiferana, an economically important lepidopteran forest pest in eastern Canada and the northeastern United States. Contrary to our expectations, the gut microbial community of spruce budworm larvae does not appear to influence host growth or survival. Our results agree with the hypothesis that lepidopteran larvae lack resident microbial communities and are not nutritionally dependent on bacterial symbionts.

Footnotes

  • extraneous analyses have been removed and the community analysis was redone using an updated method (i.e OTUs were replaced with ASVs using DADA2).

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The copyright holder for this preprint is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. It is made available under a CC-BY-NC-ND 4.0 International license.
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Posted January 03, 2020.
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The Gut Microbiome of the Eastern Spruce Budworm Does Not Influence Larval Growth or Survival
Melbert T. Schwarz, Daniel Kneeshaw, Steven W. Kembel
bioRxiv 330928; doi: https://doi.org/10.1101/330928
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The Gut Microbiome of the Eastern Spruce Budworm Does Not Influence Larval Growth or Survival
Melbert T. Schwarz, Daniel Kneeshaw, Steven W. Kembel
bioRxiv 330928; doi: https://doi.org/10.1101/330928

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